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Finding the Fourth Proportional to 869,770.22, 1,200,292.64 and 482,592.65

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Solution

The fourth proportional to 869,770.22, 1,200,292.64 and 482,592.65 is: 665,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,770.22 : 1,200,292.64 = 482,592.65 : x
  2. Step 2: Convert to fraction form
    869,770.22/1,200,292.64 = 482,592.65/x
  3. Step 3: Cross multiply
    869,770.22x = 1,200,292.64 × 482,592.65
  4. Step 4: Simplify right side
    869,770.22x = 579,252,397,498.67
  5. Step 5: Solve for x
    x = 579,252,397,498.67/869,770.22
  6. Step 6: Final answer
    x = 665,983.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.